Wheel for a commercial vehicle, and use thereof

Abstract

A commercial vehicle wheel including a rim configured to hold a tire and a wheel disc attached to the rim with an attachment region for removable attachment to a wheel carrier. The wheel disc is formed from at least two parts, which are joined together. At least one of the parts consists of a multiphase steel alloy or a heat-treatable steel alloy.

1 .- 11 . (canceled) 
     
     
         12 . A commercial vehicle wheel, comprising:
 a rim configured to hold a tire, and   a wheel disc attached to the rim, the wheel disc including an attachment region configured to removably attach to a wheel carrier, wherein the wheel disc is formed from at least two parts, which are joined together,   wherein at least one of the wheel disc parts consists of a multiphase steel alloy or a heat-treatable steel alloy.   
     
     
         13 . The commercial vehicle wheel of  claim 12 , wherein the multiphase steel alloy is a dual-phase steel, a complex-phase steel, a ferrite-bainite steel or a martensite-phase steel alloy, wherein the structure of the multiphase steel alloy consists of at least two of the phases: ferrite, bainite, austenite or martensite, or the heat-treatable steel alloy is a hot forming steel or air hardening steel alloy, wherein the structure of the heat-treatable steel alloy consists predominantly of martensite. 
     
     
         14 . The commercial vehicle wheel of  claim 13 , wherein the multiphase steel alloy has a tensile strength of at least 500 MPa. 
     
     
         15 . The commercial vehicle wheel of  claim 13 , wherein the heat-treatable steel alloy has a tensile strength of at least 700 MPa. 
     
     
         16 . The commercial vehicle wheel of  claim 13 , wherein more than 90% of the structure of the heat-treatable steel alloy consists of martensite. 
     
     
         17 . The commercial vehicle wheel of  claim 12 , wherein the at least two parts each consist of a multiphase steel alloy or a heat-treatable steel alloy. 
     
     
         18 . The commercial vehicle wheel of  claim 12 , wherein the wheel disc is substantially shell-shaped, having a center region with a center opening and a peripheral web region, in which several openings arranged round the center opening are provided for receiving connection means, wherein at least a portion of the web region forms the attachment region for removable attachment to a wheel carrier, and a collar region radially projecting onto the web region, wherein the collar region comprises an end region forming the attachment region to a rim. 
     
     
         19 . The commercial vehicle wheel of  claim 18 , wherein the web region and the end region are formed by at least a first part of the wheel disc. 
     
     
         20 . The commercial vehicle wheel of  claim 12 , wherein at least one second part of the wheel disc is substantially ring-shaped and formed in particular as a single piece and is arranged at least for a section in the web region on the side facing the wheel carrier or at least for a section in the web region on the side facing away from the wheel carrier. 
     
     
         21 . The commercial vehicle wheel of  claim 20 , wherein the second part of the wheel disc protrudes into the collar region and is arranged at least for a section in the collar region of the wheel disc. 
     
     
         22 . The commercial vehicle wheel of  claim 20 , wherein at least one third part of the wheel disc is substantially ring-shaped and formed as a single piece and is arranged at least for a section in the web region on the side situated opposite the second part of the wheel disc. 
     
     
         23 . The commercial vehicle wheel of  claim 12 , wherein the parts at first are each individually formed by pressure forming, tensile forming, tensile compressive forming, bend forming, shear forming, flow forming and/or deep drawing. 
     
     
         24 . The commercial vehicle wheel of  claim 23 , wherein the parts at first are each individually formed by hot forming with at least partial press hardening and are then joined together to form the wheel disc. 
     
     
         25 . The commercial vehicle wheel of  claim 12 , wherein the materials are formed together in the state by pressure forming, tensile forming, tensile compressive forming, bend forming, shear forming, flow forming and/or deep drawing. 
     
     
         26 . The commercial vehicle wheel of  claim 25 , wherein the materials are joined together. 
     
     
         27 . The commercial vehicle wheel of  claim 25 , wherein the materials are formed together by hot forming with at least partial press hardening to form the wheel disc. 
     
     
         28 . The commercial vehicle wheel of  claim 12 , wherein the at least two parts of the wheel disc are joined together by integral bonding, non-positive and/or positive locking. 
     
     
         29 . A commercial vehicle comprising a plurality of commercial vehicle wheels according to the commercial vehicle wheel of  claim 12 .